How to create a script that simulates the blinking terminal cursor?
consider .... pseudo code ... 

    n = 1 // for slower use 2
    fps = 24 //frames per second .. change to suit you
    timeperiod = n * fps
    if (frame % timeperiod) &gt; (.5 * timeperiod):
       then show cursor 
       else do not show cursor
// frame is the current frame provided by Blender
// fps is the actual frames per second intended for final render


Please inspect and correct the pseudo code above